Demi Lovato joins X Factor USA judges on stage 15481
Demi Lovato joins X Factor USA judges on stage 15482
Demi Lovato joins X Factor USA judges on stage 15483
Demi Lovato joins X Factor USA judges on stage 15484
Demi Lovato joins X Factor USA judges on stage 15485
Demi Lovato joins X Factor USA judges on stage 15486
Demi Lovato joins X Factor USA judges on stage 15487
Demi Lovato joins X Factor USA judges on stage 15488
Demi Lovato joins X Factor USA judges on stage 15489
Demi Lovato joins X Factor USA judges on stage 15490
Demi Lovato joins X Factor USA judges on stage 15491
Demi Lovato joins X Factor USA judges on stage 15492